feat: Create a new rule to check body content without resquesbody

[marcosanz-apiquality]

Feature Request

Describe the Feature Request

Sometimes, we want to define with the follwing structure:
post:
security:

• apiKey: []
  summary: create a greeting
  operationId: createGreeting
  description: create a greeting all attributes
  tags:
• Greetings
  requestBody:
  content:
  application/json:
  schema:
  $ref: '#/components/schemas/greeting'
  examples:
  Ejemplo:
  $ref: '#/components/examples/greeting_example'

Describe Preferred Solution

Describe Alternatives

Related Code

Additional Context

If the feature request is approved, would you be willing to submit a PR?
Yes / No (Help can be provided if you need assistance submitting a PR)